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Fix bug of link query order on markdown render (#14156) (#14171)

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* Fix bug of link query order on markdown render

* Fix bluemonday bug and fix one wrong test

Co-authored-by: 6543 <6543@obermui.de>

Co-authored-by: 6543 <6543@obermui.de>
This commit is contained in:
Lunny Xiao 2020-12-29 01:08:55 +08:00 committed by GitHub
parent 4a738a8f16
commit 182be90655
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 84 additions and 25 deletions
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2
go.mod
View File

@ -124,3 +124,5 @@ require (
)
replace github.com/hashicorp/go-version => github.com/6543/go-version v1.2.4
replace github.com/microcosm-cc/bluemonday => github.com/lunny/bluemonday v1.0.5-0.20201227154428-ca34796141e8

5
go.sum
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@ -598,6 +598,8 @@ github.com/lib/pq v1.3.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/lib/pq v1.7.0/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lib/pq v1.8.1-0.20200908161135-083382b7e6fc h1:ERSU1OvZ6MdWhHieo2oT7xwR/HCksqKdgK6iYPU5pHI=
github.com/lib/pq v1.8.1-0.20200908161135-083382b7e6fc/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lunny/bluemonday v1.0.5-0.20201227154428-ca34796141e8 h1:1omo92DLtxQu6VwVPSZAmduHaK5zssed6cvkHyl1XOg=
github.com/lunny/bluemonday v1.0.5-0.20201227154428-ca34796141e8/go.mod h1:8iwZnFn2CDDNZ0r6UXhF4xawGvzaqzCRa1n3/lO3W2w=
github.com/lunny/dingtalk_webhook v0.0.0-20171025031554-e3534c89ef96 h1:uNwtsDp7ci48vBTTxDuwcoTXz4lwtDTe7TjCQ0noaWY=
github.com/lunny/dingtalk_webhook v0.0.0-20171025031554-e3534c89ef96/go.mod h1:mmIfjCSQlGYXmJ95jFN84AkQFnVABtKuJL8IrzwvUKQ=
github.com/lunny/log v0.0.0-20160921050905-7887c61bf0de h1:nyxwRdWHAVxpFcDThedEgQ07DbcRc5xgNObtbTp76fk=
@ -649,8 +651,6 @@ github.com/mgechev/revive v1.0.3-0.20200921231451-246eac737dc7 h1:ydVkpU/M4/c45y
github.com/mgechev/revive v1.0.3-0.20200921231451-246eac737dc7/go.mod h1:no/hfevHbndpXR5CaJahkYCfM/FFpmM/dSOwFGU7Z1o=
github.com/mholt/archiver/v3 v3.3.0 h1:vWjhY8SQp5yzM9P6OJ/eZEkmi3UAbRrxCq48MxjAzig=
github.com/mholt/archiver/v3 v3.3.0/go.mod h1:YnQtqsp+94Rwd0D/rk5cnLrxusUBUXg+08Ebtr1Mqao=
github.com/microcosm-cc/bluemonday v1.0.3-0.20191119130333-0a75d7616912 h1:hJde9rA24hlTcAYSwJoXpDUyGtfKQ/jsofw+WaDqGrI=
github.com/microcosm-cc/bluemonday v1.0.3-0.20191119130333-0a75d7616912/go.mod h1:8iwZnFn2CDDNZ0r6UXhF4xawGvzaqzCRa1n3/lO3W2w=
github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/minio/md5-simd v1.1.0 h1:QPfiOqlZH+Cj9teu0t9b1nTBfPbyTl16Of5MeuShdK4=
github.com/minio/md5-simd v1.1.0/go.mod h1:XpBqgZULrMYD3R+M28PcmP0CkI7PEMzB3U77ZrKZ0Gw=
@ -937,7 +937,6 @@ golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPh
golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20201217014255-9d1352758620 h1:3wPMTskHO3+O6jqTEXyFcsnuxMQOqYSaHsDxcbUXpqA=
golang.org/x/crypto v0.0.0-20201217014255-9d1352758620/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=

2
modules/markup/html_test.go
View File

@ -142,7 +142,7 @@ func TestRender_links(t *testing.T) {
`<p><a href="ftp://gitea.com/file.txt" rel="nofollow">ftp://gitea.com/file.txt</a></p>`)
test(
"magnet:?xt=urn:btih:5dee65101db281ac9c46344cd6b175cdcadabcde&dn=download",
`<p><a href="magnet:?dn=download&xt=urn%3Abtih%3A5dee65101db281ac9c46344cd6b175cdcadabcde" rel="nofollow">magnet:?xt=urn:btih:5dee65101db281ac9c46344cd6b175cdcadabcde&amp;dn=download</a></p>`)
`<p><a href="magnet:?xt=urn%3Abtih%3A5dee65101db281ac9c46344cd6b175cdcadabcde&dn=download" rel="nofollow">magnet:?xt=urn:btih:5dee65101db281ac9c46344cd6b175cdcadabcde&amp;dn=download</a></p>`)
// Test that should *not* be turned into URL
test(

97
vendor/github.com/microcosm-cc/bluemonday/sanitize.go generated vendored
View File

@ -122,22 +122,79 @@ func escapeUrlComponent(val string) string {
return w.String()
}
func sanitizedUrl(val string) (string, error) {
// Query represents a query
type Query struct {
Key string
Value string
}
func parseQuery(query string) (values []Query, err error) {
for query != "" {
key := query
if i := strings.IndexAny(key, "&;"); i >= 0 {
key, query = key[:i], key[i+1:]
} else {
query = ""
}
if key == "" {
continue
}
value := ""
if i := strings.Index(key, "="); i >= 0 {
key, value = key[:i], key[i+1:]
}
key, err1 := url.QueryUnescape(key)
if err1 != nil {
if err == nil {
err = err1
}
continue
}
value, err1 = url.QueryUnescape(value)
if err1 != nil {
if err == nil {
err = err1
}
continue
}
values = append(values, Query{
Key: key,
Value: value,
})
}
return values, err
}
func encodeQueries(queries []Query) string {
var b strings.Builder
for i, query := range queries {
b.WriteString(url.QueryEscape(query.Key))
b.WriteString("=")
b.WriteString(url.QueryEscape(query.Value))
if i < len(queries)-1 {
b.WriteString("&")
}
}
return b.String()
}
func sanitizedURL(val string) (string, error) {
u, err := url.Parse(val)
if err != nil {
return "", err
}
// sanitize the url query params
sanitizedQueryValues := make(url.Values, 0)
queryValues := u.Query()
for k, vals := range queryValues {
sk := html.EscapeString(k)
for _, v := range vals {
sv := escapeUrlComponent(v)
sanitizedQueryValues.Set(sk, sv)
}
// we use parseQuery but not u.Query to keep the order not change because
// url.Values is a map which has a random order.
queryValues, err := parseQuery(u.RawQuery)
if err != nil {
return "", err
}
u.RawQuery = sanitizedQueryValues.Encode()
// sanitize the url query params
for i, query := range queryValues {
queryValues[i].Key = html.EscapeString(query.Key)
}
u.RawQuery = encodeQueries(queryValues)
// u.String() will also sanitize host/scheme/user/pass
return u.String(), nil
}
@ -158,7 +215,7 @@ func (p *Policy) writeLinkableBuf(buff *bytes.Buffer, token *html.Token) {
tokenBuff.WriteString(html.EscapeString(attr.Val))
continue
}
u, err := sanitizedUrl(u)
u, err := sanitizedURL(u)
if err == nil {
tokenBuff.WriteString(u)
} else {
@ -390,10 +447,10 @@ func (p *Policy) sanitizeAttrs(
hasStylePolicies = true
}
// no specific element policy found, look for a pattern match
if !hasStylePolicies{
for k, v := range p.elsMatchingAndStyles{
if !hasStylePolicies {
for k, v := range p.elsMatchingAndStyles {
if k.MatchString(elementName) {
if len(v) > 0{
if len(v) > 0 {
hasStylePolicies = true
break
}
@ -669,14 +726,14 @@ func (p *Policy) sanitizeAttrs(
func (p *Policy) sanitizeStyles(attr html.Attribute, elementName string) html.Attribute {
sps := p.elsAndStyles[elementName]
if len(sps) == 0{
if len(sps) == 0 {
sps = map[string]stylePolicy{}
// check for any matching elements, if we don't already have a policy found
// if multiple matches are found they will be overwritten, it's best
// to not have overlapping matchers
for regex, policies :=range p.elsMatchingAndStyles{
if regex.MatchString(elementName){
for k, v := range policies{
for regex, policies := range p.elsMatchingAndStyles {
if regex.MatchString(elementName) {
for k, v := range policies {
sps[k] = v
}
}
@ -874,7 +931,7 @@ func removeUnicode(value string) string {
return substitutedValue
}
func (p *Policy) matchRegex(elementName string ) (map[string]attrPolicy, bool) {
func (p *Policy) matchRegex(elementName string) (map[string]attrPolicy, bool) {
aps := make(map[string]attrPolicy, 0)
matched := false
for regex, attrs := range p.elsMatchingAndAttrs {

3
vendor/modules.txt vendored
View File

@ -566,7 +566,7 @@ github.com/mgechev/revive/rule
# github.com/mholt/archiver/v3 v3.3.0
## explicit
github.com/mholt/archiver/v3
# github.com/microcosm-cc/bluemonday v1.0.3-0.20191119130333-0a75d7616912
# github.com/microcosm-cc/bluemonday v1.0.3-0.20191119130333-0a75d7616912 => github.com/lunny/bluemonday v1.0.5-0.20201227154428-ca34796141e8
## explicit
github.com/microcosm-cc/bluemonday
# github.com/minio/md5-simd v1.1.0
@ -979,3 +979,4 @@ xorm.io/xorm/names
xorm.io/xorm/schemas
xorm.io/xorm/tags
# github.com/hashicorp/go-version => github.com/6543/go-version v1.2.4
# github.com/microcosm-cc/bluemonday => github.com/lunny/bluemonday v1.0.5-0.20201227154428-ca34796141e8